<?php

class ArticleController extends Controller
{

	public $thumbWidth=80;
	public $thumbHeight=80;
	public $imageWidth=320;
	public $imageHeight=285;
	public $imageFolder='articles';
	public $thumbFolder='tn';


	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
		array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
		),
		array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','create','update','delete'),
				'roles'=>array('admin'),
		),
		array('deny',  // deny all users
				'users'=>array('*'),
		),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Article;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Article']))
		{
			$model->attributes=$_POST['Article'];
			$this->saveImages($model);
			$model->updated=new CDbExpression('NOW()');
			if($model->save())
			$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Article']))
		{
			$model->attributes=$_POST['Article'];
			
			$this->saveImages($model);
			$model->updated=new CDbExpression('NOW()');
			
			if($model->save())
			$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'index' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			//$this->loadModel($id)->delete();
			$model=$this->loadModel($id);
			$model->deleted=1;
			$model->save();
			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
		throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Article',
		array('criteria'=>array(
			'condition'=>'deleted=0 and showWeb=1')
		)
		);
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Article('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Article']))
		$model->attributes=$_GET['Article'];
		$model->deleted='0';
		$this->render('admin',array(
			'model'=>$model,
		));
	}

	private function saveImages($model){
		$uploadImage=CUploadedFile::getInstance($model,'imageUpload');
		if($uploadImage!==null){
			$rootPath=dirname(Yii::app()->basePath);				
			if(!empty($model->filePath)){
				@unlink($rootPath.$model->filePath);
			}
			if(!empty($model->thumbPath)){
				@unlink($rootPath.$model->thumbPath);
			}
			$thumbImage=CUploadedFile::getInstance($model,'thumbUpload');

			$extension=substr($uploadImage->getName(),strrpos($uploadImage->getName(),'.'));
			$fileName=uniqid().$extension;

				
			$fileFullPath='/images/'.$this->imageFolder.'/'.$fileName;
			$fileThumbPath='/images/'.$this->imageFolder.'/'.
			$this->thumbFolder.'/'.$fileName;

			if($thumbImage!==null){
				$image = Yii::app()->image->load($uploadImage->getTempName());
				$image->resize($this->imageWidth,$this->imageHeight);
				$imageThumb = Yii::app()->image->load($thumbImage->getTempName());
				$imageThumb->resize($this->thumbWidth,$this->thumbHeight);
				//if($thumbImage->saveAs($rootPath.$fileThumbPath)&&$uploadImage->saveAs($rootPath.$fileFullPath)){
				if($image->save($rootPath.$fileFullPath,false)&&$imageThumb->save($rootPath.$fileThumbPath,false)){
						
						
					$model->filePath=$fileFullPath;
					$model->thumbPath=$fileThumbPath;
					return true;
				}
			}else{
				$image = Yii::app()->image->load($uploadImage->getTempName());
				$image->resize($this->imageWidth,$this->imageHeight);
				if($image->save($rootPath.$fileFullPath,false)){
					$imageThumb = Yii::app()->image->load($uploadImage->getTempName());
					$imageThumb->resize($this->thumbWidth,$this->thumbHeight);
					if($imageThumb->save($rootPath.$fileThumbPath,false)){
						$model->filePath=$fileFullPath;
						$model->thumbPath=$fileThumbPath;
						return true;
					}
				}
			}
			@unlink($rootPath.$fileFullPath);
			@unlink($rootPath.$fileThumbPath);
		}
		return false;
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=Article::model()->findByPk((int)$id);
		if($model===null)
		throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='article-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
